When a production process is operating correctly, the resistance in ohms of electrical com- ponents produced has

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When a production process is operating correctly, the resistance in ohms of electrical com- ponents produced has a normal distribution with mean 92.0 and standard deviation 3.6. A random sample of four components was taken.

(a) Find the mean of the sampling distribution of the sample mean resistance.

(b) Find the variance of the sample mean.

(c) Find the standard error of the sample mean.

(d) What is the probability that the sample mean exceeds 93.0 ohms?

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Statistics For Business And Economics

ISBN: 9780131815957

4th Edition

Authors: Paul Newbold

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Question Posted: Oct 31, 2024 06:00 AM

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When a production process is operating correctly, the resistance in ohms of electrical com- ponents produced has

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Statistics For Business And Economics

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